How Many Squares Of Roofing Do I Need

For a new roof you will also need the same amount of underlayment.

How many squares of roofing do i need.

The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square. This means you would need 240 squares of shingles to cover that roof. Roof surfaces are measured in squares a square is an area of roof which measures 100 square feet. For a new roof you will also need the same amount of underlayment.

The result is 240 and this means you would need 240 squares of shingles to cover that roof. How many rolls of felt will you need roofing felt is sold by the roll. Find the number of squares. To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100.

Divide the total footage by 100 to find the number of squares in the roof. When figuring the amount of shingles needed to roof a house you first convert the total square footage of the roof to squares a square represents 100 square feet of area covered by shingles. To determine the number of squares on the gable roof example in this post divide its total of 24 000 square feet by 100 24 000 100 240. The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. The number of squares determines the amount of shingles needed. A roofing square is equal to 100 square feet of the roof. There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.

Roofers measure surfaces in squares of 100 square feet 9 29 square meters. Singles are often sold in bundles with three bundles equaling one roof square. Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

However shingles are packaged in a way that they are light enough for the average person to carry around. The average roll of 15 pound roofing felt covers about 400 ft 2 or 4 squares while the average roll of 30 pound roofing felt covers about 200 ft 2 or 2 squares. So in the gable roof example above.